sys/seq: Add Kconfig support
sys/seq: Add Kconfig support

RIOT-OS/RIOT,authmillenon/RIOT,jasonatran/RIOT,OlegHahm/RIOT,jasonatran/RIOT,ant9000/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,ant9000/RIOT,ant9000/RIOT,miri64/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,authmillenon/RIOT,kYc0o/RIOT,authmillenon/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,kaspar030/RIOT,miri64/RIOT,authmillenon/RIOT,OlegHahm/RIOT,miri64/RIOT,kYc0o/RIOT,kYc0o/RIOT,OTAkeys/RIOT,kYc0o/RIOT,OlegHahm/RIOT,OTAkeys/RIOT,ant9000/RIOT,kaspar030/RIOT,kaspar030/RIOT,authmillenon/RIOT,kaspar030/RIOT,jasonatran/RIOT,kYc0o/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,miri64/RIOT,miri64/RIOT,jasonatran/RIOT,kaspar030/RIOT,ant9000/RIOT,RIOT-OS/RIOT